摘要
介绍了一种基于蓝牙技术的方向盘控制系统。利用蓝牙传输技术实现汽车方向盘面板开关电子化优化设计,克服传统驾驶过程中需要低头找开关的弊端,使得大部分操作在方向盘上实现,汽车驾驶更便捷。控制系统采用基于BC219159蓝牙芯片的蓝牙模块;主控设备以STC89LE516为控制器,将驾驶盘上按钮的信号采集并处理后送入蓝牙芯片进行无线发送;从控设备蓝牙模块接收到主控设备的信号后,从控芯片STC89C516根据不同的信号发送相应的指令通过CAN总线控制车内的空调、音响、定速巡航、车灯四大系统的使用,同时连接液晶显示屏,可方便驾驶者操控各种设备。本系统利用PWM的方式控制每种功能的强弱调控,减少硬件成本。测试表明,此系统具有成本低、可靠性好、安全性高和通用性强等优点。
This paper introduces a steering wheel control system based on the Bluetooth.Taking advantage of the Bluetooth,we can realize the optimal design of electronic switchings on the steering wheel panel,so the problem that we have to look down to find the switch in the past can be overcome,and we could achieve most of the operation on the steering wheel.At the same time,the driving is more convenient.The control system uses the Bluetooth module based on the BC219159 Bluetooth chip.The master control device uses the STC89LE516 as the controller,which collect the instructions from the button fixed into the steering wheel,and then,it sends the instructions to the Bluetooth chip which sends the signal by the way of wireless;when the slave device receive the signal,the slave chip STC89C516 send corresponding instructions which are based on the different signal,making use of the CAN bus to control the four systems that the air conditioning,the sound,the cruise,the lights,and because the LCD is used,the drivers can use the system more easily.The system utilizes the PWM to control the strength of each control function.Hence,the cost of the hardware is less.The trial proves the system has the advantages of low cost,reliability,safety and interchangeability.
出处
《计算机系统应用》
2011年第7期137-140,共4页
Computer Systems & Applications
